test 467 (#481)

* test 467

* address code review

* fix str comp

tests/test_core/test_coords.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import datetime
 import pickle
 from functools import partial
 from io import BytesIO
@@ -360,6 +361,16 @@ def test_coord_range(self, monotonic_float_coord):
         with pytest.raises(CoordError, match=msg):
             monotonic_float_coord.coord_range()
 
+    def test_get_coord_datetime(self):
+        """Ensure get_coord accepts a datetime object. See #467."""
+        d1 = datetime.datetime.fromisoformat("2017-09-18T01")
+        d2 = datetime.datetime.fromisoformat("2017-09-18T02")
+        step = datetime.timedelta(minutes=1)
+        coord = get_coord(start=d1, stop=d2, step=step)
+        assert isinstance(coord, BaseCoord)
+        assert str(d1) == str(coord.min())
+        assert str(d2) == str(coord.max() + coord.step)
+
 
 class TestCoordSummary:
     """tests for converting to and from summary coords."""